Reps. Paul Broun and Phil Gingrey and former Secretary of State Karen Handel each raised approximately $280,000 over the last three months. In comparison, Kingston reported more than $800,000 in contributions with about $2.9 million in cash.

Businessman David Perdue has also raised about $810,000 in the five months since launching his exploratory committee. Perdue has $1.3 million in cash after investing $1 million of his own money into the race.